package brinaryTree;

public class N100_SameTree {
    public boolean isSameTree(TreeNode p, TreeNode q) {

        if (p == null && q == null) return true;
        else if (p == null || q == null) return false;
        else if (p.val != q.val) return false;
        else {
            return isSameTree(p.left, q.left) && isSameTree(p.right, q.right);
        }
    }


}
